Patent US2978559A successfully refreshed from Google Patents.
US2978559A
Expired / Lapsed
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Bushing mounted interrupter
Assignee: ITE Circuit Breaker Co
•
Filing: 1957-12-16
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Granted: 1961-04-04
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Expires: 1977-12-16
Abstract
No abstract record available.
Inventors
- 👤 Arthur S Caswell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:44
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/025; H01H1/00; H01H1/58; H01H1/5833; H01H33/28; H01H33/30; H01H33/302; H01H33/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR632782A
Cited
US2419446A
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DE295226C
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US1811887A
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US1895907A
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DE701867C
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US2459600A
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FR997193A
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GB605163A
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GB626842A
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US2757261A
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US2747055A
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US2805305A
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FR1123717A
Cited
US2905793A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-03 | 1964-10-03 | 1965-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-03 | 1968-10-03 | 1969-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-03 | 1972-10-03 | 1973-04-04 | $7700.00 | Window Closed / Lapsed |